Glass-drawing apparatus.



W. R. CAMPBELL.

GLASS DRAWING APPARATUS.

APPLICATION FILED SKI-127.1913.

Patented Dec. 29. 1914.

airssr nane,

v WILLIAM R. CAMPBELL, F LANCASTER, OHIO.

GLASS-DRAWING APPARATUS.

To allrvhom it may concern:

exact description of the invention, such as will enable others skilled in the art to which it a ppertains to make and use the same.

My invention relates to an improvement in glass drawing apparatus, and it consists in.a pot carrying frame with two pots located at right angles, so that a movement of the frame through an arc of ninety degrees will carry one pet from a horizontal position to a vertical or draining position, and the other pot from its vertical or draining position, to a horizontal position to receive a charge of molten glass, and a heating furnace mounted on a horizontal track through an arc of one hundred and eighty degrees concentric with the pots, so that it can be moved to position immediately in front of either pot when the latter is in its vertical or draining position.

My invention further consists in the details of construction and combination of parts as will b: more fully described and pointct' out in the claims.

In the accompanying drawings, Figure 1 is a view in side elevation of my improved apparatus and Fig. 2 is a view in plan of same.

1. represents a shaft mounted in bearings 2 carried by the frame 3 which is supported in the foundation 4. This shaft 1 is pr0- vided with arms l" which may be rigidly cured to the shaft, 1 or rigid with a hub mounted to turn on the shaft, which, arms carry the tables and 8, the latter being located ei'lge to edge and at right angles to each other as shown, so that when one table is horizoi'ital. the oiher will. be vertical, the construction being such that each table can turn through an arc of ninety degrees.

Each table 5 and (3, carries a pot 7, hence a quarter turn of the table shifts one pot from its horizontal or drawing position, to its vertical or draining position, so that when one pot is in its-horizontal position and contains the supply of melted glass from which the cylinder is being drawn, the other will be in a position to permit the glass remaining in the pot after the cylinder has been drawn, to drain oft.

Specification of Letters l atent.

Patented Dec. 29 Illa-"let,

Application filed September 27, 1913. Serial No. 792,149.

In order to remove all the glass from pot prior to refilling for anotherdrawing, it is necessary to maintain the glass in the pot being drained, in a melted condition and this I accomplish by amovable furnace'i, which latter can be shifted through an arc of one hundred and eighty degrees so as to heat each pot as it is turned from its drawing to its draining positions. This furnace 8 is mounted on a truck 9, provided with a series of flanged wheels 10, and if desired with intermediate wheels 11, which in the present instance are Wltlf1- out flanges. This truck is mounted on a curved trackway 12, which may be an end less circular track, or simply of sufiicient length to permit of the necessary movement of the furnace. It is however located concentric to the potscarrying frame so that when shifted from its position in. front of one pot to' the other, it will bear substan tially the same relation to each. The truck 9 is curved to conform to the traclrway l5 and the furnace 8 is preferably provided.

with a concaveinner face, and with fuel burners 13 which may be for oil or gas, the I opening 14 through which the burner pipes pass, being larger than the burner pipes so as to permit the free passage of air, which, connningling with the oil or gas as the latter issues from the burners, produces an intense heat suflicient to melt the glass remaining in the pot, and as the pot is, while beingthus heated, in a vertical position, the glass, as it becomes fluid, drains from the pot thus leaving the latter clean and ready to receive another supply of melted glass. The pots are approximately the same surface area as the furnace and compare tively close to the latter so that the inner furnace of the pot will be within the heat ing influence of the furnace.

la the operation of the apparatus, after the vertical pet has been drained of its excess glass, the furnace 8 is moved bod 3 around a half circle so as to be in a DOSltiOl'l. to heat the hori ontal pot as soon as same is turned to its vertical position, and it occupies 'irecisely the same relation to this pot as it did to the one at the other side. The tables carrying the pots may be turned from one position to the other, the furnace subsequently shifted, or the furnace may he first shifted the whole, or part way around to its next position, and the tab ien turned.

lVith this improvement there is no lifting of the pots and no movement of the table except a part rotary movement, hence the mechanism for actuating the tables may be comparatively simple and inexpensive and no time whatever need be lost in shifting one pot from its vertical or draining position to.

its upright position under the drawing apparatus.

it is evident that many slight changes might be made in the relative arrangement of parts shown and described without departing from the spirit and scope of my invention. Hence I would have it understood that Ido not Wish to confine myself to the exact construction and arrangement of parts shown and described but Having fully described my invention What I I claim as new and desire to secure by Letters-Patent ,1s: V j v I 1. In a glass drawing apparatus, the combination of a frame mounted to turn on a horizontal axis and having pot carrying supports at right angles to each other whereby a quarter turn of the frame will move one pot from its vertical to a horizontal position, and more the other. pot from a hori- Zontal to a vertical position, and a furnace mounted on a truck whereby it may be shifted from one side of. said pivoted frame to the other for heating the pots when the latter are in theirvertical positions. 2. In a glass drawing apparatus, the combination of a frame mounted to turn on a horizontal axis and having two pot carrying; tables located edge to edge at right angles, a circular track concentric with said frame,

and a furnace mounted on a truck adapted to travel on said track.

3. In'a glass drawlng apparatus, the combination of a frame mounted to rock on a 

